Siemens SINAMICS S120 Function Manual page 385

Parameter
Indices
p4689 Square-wave encoder diagnostics
Messages
F3x117 Inversion signal A and B error
F3x118 Speed difference outside tolerance
F3x131 Deviation position incremental ab‐
solute too high
A3x400 Alarm threshold zero mark distance
error
A3x401 Alarm threshold zero mark clear‐
ance failed
A3x418 Speed difference per sampling rate
exceeded
A3x422 Number of pulses square-wave en‐
coder outside tolerance
Number
In column
Drive functions
Function Manual, 06/2019, 6SL3097-5AB00-0BP2
These functions can be freely combined with one
another
Explanation
1 Encoder track monitoring
2 Zero mark tolerance
3 Freezing the speed setpoint
4 Adjustable hardware filter
5 The measuring time can be set to evaluate zero speed
6 Sliding averaging of the speed actual value
7 Edge evaluation of the zero mark
8 Signal edge evaluation (1x, 4x)
9 Pole position adaptation
10 Pulse number correction in the event of faults (pole position for commutation
is also corrected)
11 "Tolerance band pulse number" monitoring
1 2 3 4
x
x
x
x
x
8.21 Tolerant encoder monitoring
Functionality
These functions
build on one an‐
other from left to
right, and can be
combined with
the adjacent ones
5 6 7 8
Basic functions
9 10 11
x x
x
x
383